An automotive vehicle engine apparatus includes an air intake system. In a further aspect of the present application, an automotive vehicle engine apparatus includes an air intake manifold, an air box and an air scoop. Another aspect of the present application employs an air intake shaker and a supercharger. A method of manufacturing and/or operating an air intake system is also provided.
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1. An automotive vehicle apparatus comprising:
a manifold assembly including an air intake manifold and a lid covering the manifold;
a snorkel mounted on the lid and having a first opening in communication with the manifold assembly;
a valve coupled to the snorkel and having a passageway in communication with a second opening of the snorkel;
an air box positioned above the manifold assembly, the air box having a bore in communication with the passageway of the valve, a majority of the incoming air flowing along a substantially straight path through the air box;
an air scoop mounted to the air box and operably directing air from outside the vehicle to the air box, the incoming air flowing directly from the scoop to the manifold; and
a supercharger member located within the manifold.
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This application claims the benefit of U.S. Provisional Application No. 61/045,737, filed on Apr. 17, 2008. The entire disclosure of the above application is incorporated herein by reference.
The present invention relates generally to an automotive vehicle apparatus and more particularly to an air intake system for an automotive vehicle engine.
Air intake systems are known for automotive vehicle engines. Such traditional systems are disclosed in the following U.S. Pat. No. 5,058,558 entitled “Air Feeding System for a Vehicle Engine Equipped with a Supercharger” which issued to Ueda et al. on Oct. 22, 1991; U.S. Pat. No. 5,448,982 entitled “Intake System for an Internal Combustion Engine with a Supercharger” which issued to Arakawa et al. on Sep. 12, 1995; and U.S. Pat. No. 6,463,901 entitled “Method and Device for Improving Air Intake for Fuel Injection Engines” which issued to Cuddihee, Sr. et al. on Oct. 15, 2002. All of these patents are incorporated by reference herein. Each of these traditional systems, however, disadvantageously locate its air box, containing an air filter, remotely away from both the air intake manifold and air inlet. Elongated air pipes or tubes snake throughout the engine compartment between the inlet, air box and manifold, thereby allowing the incoming air to be heated by the engine and lose pressure due to the circuitous and elongated tube routes. Furthermore, superchargers are typically ineffective if the intake air exceeds approximately 150° F.
In accordance with the present invention, an automotive vehicle engine apparatus includes an air intake system. In a further aspect of the present invention, an automotive vehicle engine apparatus includes an air intake manifold, an air box and an air scoop. Another aspect of the present invention employs an air intake shaker and a supercharger. A method of manufacturing and/or operating an air intake system is also provided.
The automotive vehicle engine apparatus of the present application is advantageous over traditional constructions since the apparatus of the present application shortens and simplifies the flow path for the intake air between an inlet of the scoop or shaker, and an inlet of a manifold assembly. This shortened, simplified and more direct air flow routing minimizes undesirable heating of the intake air and minimizes pressure drops of the intake air. Accordingly, the apparatus of the present application is expected to increase engine power output by approximately 150 hp. The apparatus of the present application also is much more compact and integrated into an optionally preassembled air intake unit and/or kit. In other words, there is direct feeding of the air from the scoop inlet to a throttle coupled to the manifold assembly within a flow path length of less than about ten inches. Moreover, the intake air flow path and conduits are rigidly and directly mounted to the manifold assembly. These rigid conduits are advantageously employed for an embodiment employing the shaker mounted onto the manifold assembly since both components are intended to shake or vibrate together, but independently from the vehicle hood, when the engine is operating. As contrasted to conventional scoops connected to circular air boxes for carburetor engines with radial air flow within the circular air box (when viewed from above), the present apparatus has a majority of the incoming air flowing along a predominantly and generally straight and laminar path through the air box. It should also be appreciated that the compact and integrated construction of the present air intake system offers pleasing aesthetic and styling benefits.
An embodiment of the apparatus of the present application advantageously provides a tilted air intake filter in the air box to assist in water drainage. Furthermore, at least a majority of the air box, air filter, scoop and intake air flow path (between the scoop inlet and the manifold assembly) are directly above the manifold assembly. Water management features are also provided within the air box to limit the amount of water that may contact the air filter. Various walls, dams, a sump and drains are provided to perform this task. Further areas of applicability will become apparent from the description and drawings provided herein taken in conjunction with the appended claims. It should be understood that the description and specific examples are intended for purposes of illustration only and are not intended to limit the scope of the present disclosure.
Referring to
Scoop 31 has a set of internally threaded bosses 51 (see
Referring now to
Air box 29 includes a number of water management features to minimize the quantity of water that may reach air filter assembly 81 during vehicle operation such as in a heavy rain or travelling through a car wash. Air box 29 includes a foil 93 that extends downwardly from inlet 49 of scoop 31 toward a sump 95. A drain tube 97 provides a passageway for water captured within sump 95 to exit air box 29. Two additional drain tubes 99 are laterally spaced apart from one another to drain an area 101 that is defined when the vehicle hood is closed, as best shown in
It is contemplated that some users of the described engine apparatus may prefer the flexibility to remove and selectively replace deflector wall 103. Removal of wall 103 may increase air flow through air box 29. However, the water management benefits of wall 103 will be lost. To address this issue, a selectively insertable replacement deflector may be provided. If inclement weather or a water filled atmosphere is predicted, a user may fasten the replacement deflector to air box 29 at the same or similar location to previously present wall 103. If a need exists for reduced air flow restriction, the replacement deflector may be easily removed and replaced again when desired.
A first dam 105 also urges water entrained within the air intake air flow to be deposited within sump 95. First dam 105 is positioned downstream of deflector wall 103 and restricts water from travelling further toward air filter assembly 81. A second dam 107 is spaced apart from first dam 105 and also acts to restrict water from entering air filter assembly 81. It should be appreciated that the upper edge of air filter assembly 81 is substantially vertically aligned with a trough 109 defined by first dam 105 and second dam 107. At least one opening is in communication with trough 109 to allow the collected water to escape from air box 29.
During operation, cool exterior air is flowed into inlet 49 of scoop 31, slightly downwardly along foil 93 of air box 29, through air box 29 and through the installed air filter 85. The still cool and dense air is subsequently flowed through throttle valve 57 (depending upon its operating position), through rigid snorkel 27 and to an inlet 111 of manifold assembly 25 defined by an opening in lid 53. The flow path for the incoming intake air is preferably less than about twenty inches, and more preferably equal to or less than about ten inches, as measured from inlet 49 of scoop 31 to inlet throttle valve 57. This flow path directly feeds the intake air from the shaker to the manifold in a generally straight and laminar flow direction and primarily directly above the manifold assembly, thereby maintaining the desired density of the air with minimal pressure losses from the shaker to the manifold. Furthermore, this fluid flow path and conduit configuration is expected to maintain the incoming air at a desirably cool temperature of less than 150° F.
FIGS. 7 and 9-11 best illustrate manifold assembly 25. Manifold assembly 25 includes lid 53 and an air intake manifold 115 which are screwed together. Manifold 115 includes a main body within which is located a supercharger intercooler 117. A pair of rotatable screws or impellers 121 for the supercharger are located in a lower cavity of manifold 115. An internal incoming air conduit 123 connects inlet 111 to the lower cavity and a central passageway 125 connects the lower cavity to the main body adjacent intercooler 117. Two banks of opposed runners 127 are accessible within the main body of manifold 115 above intercooler 117. The supercharger is preferably of the type disclosed in U.S. Patent Publication No. 2007/0175456 entitled “Apparatus and Method for Boosting Engine Performance” invented by Tally and published on Aug. 2, 2007, which is incorporated by reference herein.
Referring to
The scoop, lid and snorkel may be cast from aluminum. The air intake manifold may be machined from aluminum 6061. The air box is preferably roto molded from a rigid polyethylene polymer. Thus, the air intake system is of a light weight, durable and rigid construction, especially as compared to conventionally flexible tubes.
Referring to
Prior to installation of the preassembled air intake and supercharged manifold kit, the user must create hole 41 within hood 43. This is preferably done by laying out a template onto the hood, drilling small holes in the necessary locations and then sawing hole 41 pursuant to the template. The trim ring is then installed around the periphery defining hole 41.
Next, the user must disassemble and/or remove various components from the existing, stock factory engine prior to installation of the retrofit air intake and supercharged manifold kit. For example, the stock factory air cleaner outlet pipe, engine wire harness, vacuum tube, vacuum hose and the like must be removed. Furthermore, the fuel rails must be removed from the stock factory engine. Thereafter, the stock factory intake manifold is removed and the coolant and heater hoses are disconnected. Subsequently, the accessory drive belt and alternator are removed. Thereafter, the idler pulley is removed.
After this initial preparatory work, the retrofit air intake and supercharged manifold kit embodiment of the present apparatus is then mounted onto engine 23 such that the lower ports of runners 127 are in communication and aligned with appropriate openings within each engine head 137. Flanges adjacent runners 127 of manifold 115 are bolted onto ledges of heads 137 with the appropriate sealing gaskets therebetween. A new alternator pulley may be necessary, and the alternator is then remounted and the belt is reinstalled. The hoses and tubes for heating and cooling are reinstalled. Furthermore, the fuel rails and fuel injectors are assembled, the vacuum line is attached and then the electrical engine wire harness is attached.
The embodiments and examples described herein are exemplary and not intended to be limiting in describing the full scope of devices, apparatus, systems, and methods of the present disclosure. Equivalent changes, modifications and variations of the embodiments, materials and methods can be made within the scope and spirit of the present disclosure, with substantially similar results.
Theodore, Chris P., Hartland, Derk, Agnew, Daniel D., Musial, Marc, Frazer, William A., Butler, Gregory, Simons, Robert S.
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